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    fixit1010's Avatar
    fixit1010 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jul 18, 2010, 07:21 AM
    Thermostat will not turn off furnace
    May tstat is not turning on or off my central air conditioning or my furnace I have to cut it on and off at the breaker box
    tlc11869's Avatar
    tlc11869 Posts: 8, Reputation: 1
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    #2

    Jul 18, 2010, 10:44 AM

    You probably have a bad thermostat or a short in the one you have currently
    Angrycustomer's Avatar
    Angrycustomer Posts: 79, Reputation: -1
    Junior Member
    		  
    #3

    Jul 19, 2010, 03:35 PM

    Might be a bad T-stat or a fan relay sticking.
    wmproop's Avatar
    wmproop Posts: 3,749, Reputation: 91
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    #4

    Jul 19, 2010, 03:41 PM

    Disconnect the red wire from your tstat,, if it keeps running you will know its not the fought of the tstat,if it keeps it does keep running go to furnace and disconnect the hot/red wire that is going to tstat,if it then quits running you will know you have a short in tstat wiring between furnace and tstat
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